Heating apparatus.



L. W. MILLIS.

HEATING APPARATUS. APPLICATION FILED Nov. e. 1911.

- Patented Oct. 7, 1913.

2 SHEETS-SHEET l.

e@ ATTORNEY.

WTNESSES:

L. W. MILLIS.

HEATING APPARATUS.

APPLICATION FILED Nov. s, 1911.

2 SHEETS-SHEET 2.

Pif/"5555.5: (7. W INVENTOR.

Patented 001.21913.

COLUMBIA PLANcGrzAPH co., WASHINGTON. n, c.

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T FFQE.

LINN W. MILLIS, OF KANSAS CIT'Y, MISSOURI.

HEATING APPARATUS.

Specification of Letters Patent.

' Patented Got. 7,1913.

Application filed November 8, 1911. Serial No. 659,128;

T o all whom t may concern.'

Be it known that I, LINN W. Minnis, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new sary when changing from one kind of fuel to another.

My invention is adapted to be readily applied to furnaces or stoves of the ordinary construction.

My invention provides further a novel form of gas and oil burner which is readily adapted to'be mounted in the usual feed opening of a stove or furnace, and which,

when so mounted, will not interfere with the use of the feed opening for the insertion of coal.

My invention further provides a burner having novel means for preventing the entrance therein ofashes or coals when the fuel whichfis being employed is coal or similar fuel.

Still another feature of my invention consists in a structure having those parts which are liable to destruction or distortion by heat readily detachable so that, after being burned out they may be readilyv replaced, without the removal or displacement of those parts which are in operative condition.

The novel features of my invention are hereinafter fully described and claimed.

1n the accompanying drawings which illustrate the preferred form of my invention, Figure 1 isa vertical sectional view on the line a-Z) of Fig. 3, showing the door closed and a portion of the filling material broken away. Fig.- 2. is a vertical sectional view on the line c--CZ of Fig. 4. Fig. 3 is a vertical sectional. vie-w on the broken line e-f of Fig. 4. Fig. '4c is a horizontal sectional view, partlyv broken away and taken on the dotted line g-tof Fig. 3.

Similar reference characters designate similar parts. *l H Y 1 designates the inner casing' and 2 the outer casing of a furnace of the ordinary hot air type, the two casings forming the side wall ofthe furnace which is provided with the usual feed opening jamb 3 having the feed opening L1.. Upon the upper side of the bottom or throat plate 5- of the jamb 3 is mounted my improved burner, comprisingpreferably a rectangular body consisting of an upper me1nber'6 and a lower member 7'. The member 6 is provided at opposite sides with lateral lugs 8 disposed above similar lugs 9 on the member 7.- The members 6 and 7 are preferably detachably connected together by means off vertical bolts 10 which extend-through the lugs `8 and 9 and are provided with clamping Inuts 11. `is preferably flat so as not to interfere with jthe feeding of coal through the opening 4t The upper side of the member 6 above the burner body. The body of the burner is provided with one or more longitudinal passages 12, the outer ends of which communicate with the atmosphere at the outer side of the furnace and the inner ends of which discharge int-o the furnace. r1`he upper member 6 at its inner'y end is provided with' a downwardly and inwardly inclined lip or guard 13 which extends across but does not close the inner ends of the passages 12.A The lip 13 serves to deflect the mixed air and fuel discharged from the passages 12 downwardly, and when coal is used as a fuel, the lip 13 prevents the coals or ashes from passing into the passages 12. The under side of the member 6 is provided, preferably, with vertical longitudinal ribs 14 which extend under the lip 13 and serve to brace said lip to prevent its being upwardly warped by heat from the fire. rEhe ribs 14; are located respectively in the passages 12 and also serve to divide the fuel mixtures as they are discharged from the passages 12. Longitudinal ribs 15 are provided on the under side of the member 6 between the passages 12 and at the outer sides of said passages. These ribs 15 are mounted respectively in grooves 16 provided in the upper side of the member 7. Stove putty 17 may be placed in the grooves 16 to seal the jointsbetween the members 6 and 7 rllhe outer end of the vplate or member 6 gis provided with one orv more downwardly Iextending lugs 18 which extend centrally partly acrossthe passages 12 respectively, thelower ends of said lugs 1S having in- `;verted V-shaped notches 19`which are disposed above and coperate with the V-shaped notches `20 provided in the upper ends of lugs 21 which extend upwardly from the member 7. Externally screw threaded fuel pipes 22 are disposed in the opposing notches 19 and 20 of the lugs 18 and 21, the outside diameters of said fuel pipes being such that the pipes are held clamped between the lugs 18 and 21. J et members 23 Vare respectively mounted on the inner ends of the pipes 22, and are provided each with a small opening 24 which discharges into VAthe passage 12 in which the jet member is located. Fitted on the pipes 22 are adjustable disks 25 which are adapted to be adjusted to more or less close the outer ends of the passages 12 respectively, for the purpose of varying the amount of air taken into said passages.

26 denotes a fuel supply conductor adapted to carry oil or gas from a source of supply. The conductor is provided with branches 27 of which the pipes 22 form parts. The branches 27 are preferably supplied with shut 0E cocks 28 respectively for regulating or cutting off the fuel supply. Filling material 29, such as cement, is placed between the sides of the body of the burner and the vertical sides of the jamb 3 for the double purpose of closing the feed opening 4 at the sides of the burner body, and for engaging with the lugs 8 and 9 of the members 6 and 7 for firmly holding the burner body in place in the feed opening 4.

As shown in the drawings the vertical thickness of the burner body is considerably less than the height of the feed opening 4, thereby providing a Space through which coal may be fed into the furnace when the gas burner is not in use and without requiring the removal of the burner. Thus the device is adapted to the use of coal as a fuel without having to remove or change the arrangement of the parts. To facilitate the ready insertion of coal, the upper side of the member 6 is flat and disposed flush with the upper side of the cement filling material 29.

For closing the space above the burner body and the cement filling 29, l provide a door 30, which is substituted for the door usually employed. This door 30 is made of any suitable material, where the burner is to be applied to a furnace already in use, the door 30 may be cut from sheet metal, such as sheet steel, of the required dimensions and have riveted or otherwise secured to it in the proper positions hinge members 31 and 32, which are so located as to coperate with the usual hinge lugs 33 and 34 with which the jamb 3 may be provided. It will be noted that the hinge member 32 has a downward and laterally extending arm 35 through which extends a vertical pintle pin 37 which is mounted in a vertical hole in the lug 34. A pintle pin 36 extends through the hinge member 31 guard V13.

and lug 33. By providing the hinge 'member 32 with the downwardly and laterally extending arm 35, the hinge member may be adapted to coperate with the lug 34 located at different vertical positions relative to the position of the top of the burner body. The usual latch 38 may be pivoted to the door 30 so as to cooperate with the catch 39 with which the jamb 3 is provided. A transverse sealing device comprising a horizontal plate 40 may be mounted on the top of the member 6 in a position just to the rear of the door 30, when the door is in the closed position, as shown in Figs. 3 and 4.

In order that the plate 40 may be adjusted to suit jambs of different depths, it is preferably provided with a rearwardly extending arm 41 providedA with a longitudinal slot 42 through which extends a clamping bolt 43 which is fitted in a threaded hole provided vertically in the member 6. lVhen the bolt 43 is loosened, the plate 40 may be forwardly or backwardly moved to the proper position after which the bolt 43 is tightened, thus clamping the arm 41 to the member 6. The plate 40 as well as sealing the joint between the door` 30 and the member 6, also serves as a back support for the lower part of said door. Y

Tn operating the burner, the parts having been assembled as hereinbefore described, the cocks 28 are opened thus permitting` a How of fuel, gas or oil, through the pipes 22, from which the fuel is discharged by the openings 24 of the jet members 23 into the passages 12. The fuel being discharged inwardly through the passages 12 will cause air to be drawn into said passages at the forward ends of the passages. The mixed fuel and air will then be discharged from the passages 12 into the furnace, the mixture being deflected downwardly upon emerging from said passages by the lip or The lower edge of the lip 13 is thicker than the upper portion. This feature together with the ribs 14 tends to prevent the heat of the furnace upwardly warping the lip. When the lip 13'or other portion of the member 6 does become too much distorted from use, the member 6 may be removed by removing the bolts 10, some of the illing material 29 above the bolts 10 being removed for this purpose. A

lnew member 6 may then be substituted for the one which has been burned out. The lower member 7 of the body of the burner being protected by the member 6 from the direct heat of the furnace will not require replacing.

I do not limit my invention to the structure shown and described as many modifications, within the scope of the appended claims,l may be made without departing from the spirit of my invention. i

Having thus describedV my invention,

what I claim and desire to secure by Letters Patent, is

l. In a heating apparatus, a furnace having a feed opening, and a burner extending through but not filling the feed opening and having at its inner end a discharge opening and at its outer end provided with air and fuel inlets, and provided with a fiat upper side and a guard at its inner end extending inwardly and downwardly from its upper side across said discharge opening.

2. In a heating apparatus, a furnace having a feed opening, a burner extending through the feed opening and having at its inner end a discharge opening and at its cuter end air and fuel inlets, the vertical thickness of the burner being less than the height of the feed opening, a transverse sealing device mounted on the top of the burner, and a door for closing the feed opening above the burner and when closed being disposed in front of said sealing device.

3. In a heating apparatus, a furnace having a feed opening, a burner extending through said opening and having at its inner end a discharge opening, and at its outer end having air and fuel inlets, the vertical thickness of the burner being less than the height of the feed opening, a transverse sealing device inwardly and outwardly adjustable on the upper side of the burner,

and a door for closing the feed opening above the burner and disposed when closed in front of said sealing device.

4. In a heating apparatus, a furnace having a feed opening, a burner extending through but not filling the feed opening and having at its inner end a discharge opening and at its outer end air and fuel inlets, and having a guard extending inwardly and downwardly across the discharge opening, and a door for closing the feed opening above the burner.

5. In a heating apparatus, a furnace having a feed opening extending through one side thereof, a burner extending through the feed opening and having an opening discharging into the furnace, the burner having a vertical thickness less than the height of the feed opening and provided with a guard extending across its discharge opening, a door for closing the feed opening above the burner, and filling material below the door and between the burner and one side of the feed opening.

In testimony whereof I have signed my naine to this specification in presence of two subscribing witnesses.

LINN W. MILLIS.

vVitnessess VARREN D. I-Iousn, E. B. I-IoUsE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents, Washington, D. C. 

